GTAC Observation Log 1. Date : 29/11/2009 2. Observation Sr. No. : 4620 3. Observer : JNC, Philip Lah,Narendra 4. Observer's Email : chengalu@ncra.tifr.res.in,narendra@ncra.tifr.res.in,plah@mso.anu.edu.au 5. Project Name : Gas in Galaxies in the Distant Past 6. Project Code : 17_027 7. Operator(s) : Deepak, Jayprakash, Rupsingh, Santaji, 8. Command File : /odisk/gtac/cmd/philiplah/a370.cmd, /odisk/gtac/cmd/philiplah/zcosmos.cmd, /odisk/gtac/cmd/philiplah/vvds14.cmd 9. LTA File : /rawdata/29nov/17_027_29nov2009.lta.2, /rawdata1/29nov/17_027_29nov2009.ltb.2, /rawdata/30nov/17_027_30nov2009.lta, /rawdata1/30nov/17_027_30nov2009.ltb, /rawdata/30nov/17_027_30nov2009.lta.1, /rawdata1/30nov/17_027_30nov2009.ltb.1 10. LogFlag File : /odisk/online1/logflags/17_027.FLAGS.8 ANTENNA SETTINGS : 11. RF Freq(MHz) & Solar Attn(dB)- RF1 : 1040 MHz ,RF2 : 1040 MHz, SA1 : 0 dB, SA2 : 0 dB 12. Ist LO (MHz) & IVth LO (MHz) : ILO1 : 1110 MHz, ILO2 : 1110 MHz, IVLO1 : 70 MHz, IVLO2 : 70 MHz 13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+12 dB, 32 MHz,ON, IF-CH2 : 4+12 dB, 32 MHz,ON 14. BB BW(KHz) & BB ALC : 16000 KHz, ON CORRELATOR SETTINGS : 16. Channels : 0:127:1 17. Frequency Parameters (TPA) : 1040 1040 1110 1110 70 70 18. Integration Time : 128 LTA ~ 16.908 Sec. 19. No of Antennas Working(Fringing) :28 20. Name of Non-Working Antennas (with reason for each) : E05 - servo problem. S01-175 low fringe. C12-USB-175 fringe fluctuations. 21. Note for Backup : -- 22. Start and End Time of Obs.(IST): 18:00 - 00:00 23. ONLINE Machine : Lenyadri 24. Correlator Mode : IndianPolar 25. Comments (During Observations) : ---------------------------------------------- * GSB file: * /gsbifrdata/29nov/17_027_29nov2009_gsb.lta, * /gsbifrdata/30nov/17_027_30nov2009_gsb.lta, * /gsbifrdata/30nov/17_027_30nov2009_gsb.lta.1 ---------------------------------------------- 17:57 : Started scan on 3C48 for 8mins. 18:08 : Started command file /odisk/gtac/cmd/philiplah/a370.cmd 01:19 : stopped the command file. new record files started. scan started on 3c48. 01:28 : stopped the scan and closed the old record files. 01:36 : ZCOSMOD.CMD file started. 09:46 : Stopped command file. 09:50 : Started scan on 3C286 for 8min 09:58 : Stopped scan. ---------------------------------------------- 09:59 : Change setup tpa 1076 1076 1145 1145 69 69 10:02 : Started scan on 3C286 for 8min. 10:08 : W06 & E06 fringe fluctuation. 10:10 : Stopped scan. 10:15 : Started command file /odisk/gtac/cmd/philiplah/vvds14.cmd. 11:40 : C11 taken for maintenance. 14:30 : Stopped command file. 14:31 : Started scan on 1347+122 for 7min. 14:37 : Stopped scan 14:45 : Started scan on 2130+050 for 8min. 15:00 : Stopped scan and observation closed.